Breast-pump.



H. L. BRUEN.

BREAST PUMP.

APPLICATION FILED FEB,21. 1915.

1,148,952. Patented Aug. 3, 1915.

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COLUMIMA PLANOGRAPH CO..\VASHINGTON. D. c.

r STA HENRY I). BRUEN, OF BROOKLYN, NEW YORK.

BREAST-PUMP.

Application filed February 27, 1915.

To all whom it may concern:

Be it known that I, HENRY L. BRUEN, av

citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Breast-Pumps, of which the following is a specification, reference being had to the accompanying drawings.

This invention comprehends certain new and useful improvements in surgical appliances and relates particularly to breast pumps of the type in which the glass receptacle is detachably connected with the bulb, whereby the parts can be easily separated and the glass receptacle thoroughly cleansed or sterilized without injuring the bulb, and whereby every part can be replaced without the expense of'obtaining an entirely new instrument or appliance.

The invention has for its primary object to provide a simple, durable and efiicient construction of device of this character, in which the parts are so arranged and formed that the entire device may be at all times maintained in a thoroughly sanitary condition, in that the soft rubber bulb is provided with a mouth of relatively large diameter, whereby the interior of the bulb may be thoroughly cleansed, without any danger of tearing or otherwise injuring the rubber.

A. still further object of the invention is an improved device of this character in which the rubber bulb is provided, within the neck thereof, with a bushing of metal or any other substance or material which is so secured therein as to prevent any liability of accidental displacement or detachment and which is further so formed that while it is securely held in place and all axial slipping of the bushing relative to. the neck of the bulb is prevented, as well as any accidental separation of the two parts, at the 7 same time the bushing will not out into or otherwise injure the rubber in any way.

The invention has for a still further object an improved breast pump in which the glass receptacle is formed with a relatively thick annular shoulder against which a gasket of rubber or any other substance or material is adapted to abut, said gasket being received, in the assembled relation of the parts,,within an annular recess formed in the bushing hereinbefore referred to, and rendering the parts properly air-tight and Specification of Letters Patent.

Patented Aug. 3, 1915.

Serial No. 11,022.

at the same time avoiding any accidental breaking of the glass receptacle by screw ing the bulb tightly on the nipple thereof. And the invention also aims to generally improve devices of this class so as to render more useful and commercially desira e.

' l/Vith these and other objects in view, as will more fully appear as the description proceeds, theinvention consists in certain constructions, arrangements and combinations of the parts that I shall hereinafter more fully describe and claim.

For a full. understanding of the invention, reference is to be had to the following de scription and accompanying drawing, in which,

Figure l is a side elevation of a breast pump embodying the improvements of my invention, parts being broken away andin section, and Fig. Qis a transverse sectional view, the section being taken substantially on the line 22 of Fig. 1.

Corresponding and like parts are referred to in the following description and designated in all of the views of the accompanying drawing by like reference characters.

I Referring to the drawing, the numeral 1 designatcsa glass receptacle which may be of any desired size, shape or design, except as hereinafter noted, and which, in the pres ent instance is, shown as formed with the usual bulbous protuberance or trap 2 and with an outwardly turned or flared inlet mouth .3 at one end of the receptacle. The receptacle 1 is formed at its other end with an exteriorly threaded reduced nipple L which terminates at its base in a relatively thick rounded annular shoulder 5 against whicha rubber or other gasket or washer 6 is adapted to abut when it encircles the 1 nipple, as shown,

7 designates the soft rubber bulb of the device. This may also be of any desired shape and size, and is formed with a neck 8 with a relatively large diameter within which a threaded bushing 9 is received' from being accidentally detached.

i cut into the soft rubber of which the bulb is formed, said flange extending outwardly at the base of the neck 8 and beyond the inner end of the latter so as to assist in-se curely holding the bushing in place and prevent it commodate the gasket 6 hereinbefore referred to. The outer edge of the neck 8 fits snugly against the flange l0 and preferably cement is applied between the contacting walls of the neck and bushing so as to positively preclude any liability of any axial movement of one part relative to the other so that when the bulb is screwed up tightly on the nipple A} of the receptacle 1, the parts will be securely connected together, as desired.

From the foregoing description, in con- 7 nection with the accompanying drawing, it

.Uopi'es'of this patent may be obtained for will be seen that I have invented a very simple and eflicient construction of breast pump in which the parts are so arranged that not only is the soft rubber bulb readily removable from the glass receptacle to allow either part to be replaced without the expense of obtaining an entirely new instrument and to admit of the glass receptacle being thoroughly cleansed or sterilized without injuring the bulb, but it will also be noted that the bulb itself can be easily cleansed and at all times kept in a sanitary condition, owing to the fact that the diameter of the bushing 9 in the neck 8 is relatively great. a

While the accompanying drawing illustrates what I believe to; be the preferred embodiment of my invention, it is to be ,un-

derstood that the invention is not limited thereto, but that various changes may-be made in the construction, arrangements and proportions of the parts may be made within the scope of the invention as defined in the appended claims;

Whatis claimed, is:

1. As a new article of manufacture, a

breast pump comprising a receptacle provided at one end with an exteriorly threaded The - Witnesses':

neck, and a threaded bushing mounted in c said neck and formed at its inner end with an outstanding annular and crimped flange designed to engage the interior wall of the bulb at the inner end of the neck, said bushing being formed at its outer end with an outstanding annular flange angular in cross section and producing an annular recess, and a gasket receivable in said recess, the-receptacle being formed at the base of the nipple with a shoulder against which the gasket is adapted tofabut, when the nipple is screwed into the bushing.

'2. A breast pump comprising a receptacle formed at one end with an eXteriorly threaded nipple, a bulb provided with a neck, a

threaded bushing mounted in said neck and secured therein, said bushing beingformed at its inner end with a turned-out flange engaging the inner wall of the bulb and at its outer end with an outstanding annular taching neck, and a threaded bushing mounta is ed in said neck and formed at its inner end with a turned-out flange engaging the interior wall of the bulb at the inner end of the neck, said bushing being formed at its outer end with an outstanding flange producing an annular recess, and a gasket reshoulder against which the gasket is adapted to abut when the'nipple is screwed onto the bushing.

In testimony whereof I hereunto affix my slgnature 1n the presence of two witnesses.

HENRY L. BRUEN.

WILLIAM E. SWINDE L, 7 PAUL F. ZIETLow,

'ceivable in said recess, the receptacle being 7, formed at the base of the nipple with a five cents each, by addressing thefCommissioner of Patents, Washington, D. C. 

